Computer Networking is the practice of connecting computers and other devices to share resources and information. This can include sharing files, accessing the internet, and using printers. Networks can be small, like a home network with a few devices, or large, like the Internet, which connects millions of computers worldwide. There are different types of networks, such as Local Area Networks (LANs) and Wide Area Networks (WANs). A LAN typically covers a small geographic area, while a WAN can span large distances. Networking involves various technologies and protocols, such as TCP/IP, which help devices communicate effectively.